Preparation of coconut fibers for spinning and weaving



Oct. 28, 1930. a. e. H. VAN DER JAGT 1,779,505

PREPARATION OF'COCONUT FIBERS FOR SPINNING AND WEAVING Filed Dec, 1,1928 2 Sheets-Sheet 1 Oc t. 28, 1930. a. e. H. VAN DER J-AGT 1,779,505

PREPARATION OF cocouu'rrlmms FOR SPINNING AND WEAVING filed Dec. 1, 19282 Sheets-Sheet 2 C a mom- Pate ted Oct. 28,1930

1 UNITED STATES PATENT OFFICE BAREND GYSIBEBTUS HENDRIKUS VAN DER JAGT,OF THE HAGUE, NETHERLANDS PREPARATION OF COCONUT FIBERS FOR SPINNING AND WEAVING Application This invention relates to thespinning or othermanipulation of coconut fibers for the production of yarn or otherproducts there-' from.

In British Patent No. 24:6,837 the advantages of fiattening'the fiberwhile in a moist condition are referred to and it is shown how this isdone-by increasing the pressure between the feed rollers of a commonspinning machine or by providing a special pair of rollers for thispurpose.

For successfully carrying out the flattening a, moisture content of notless than some 50 per cent. was found to be necessary but, whenworkingfiber in this condition over the card and drawing frames and the gillspinner, difliculty was experienced because the fiber tended to lick onthe drawing rollers. On the other hand if the moisture was low, say 25per cent., it was impossible to make sliver which would stand up atthedrawing frames and The object of the present invention is to overcomethe foregoing difiiculties and to provide improvements in themanipulation of coconut fiber.

The invention consists in a method of utilizing coconut fiber forspinning according to which the fiber is worked in a normally drycondition over the preparing machinery and is moistened to the desiredextent just before spinning.

The invention further consists in a method according to the precedingparagraph or apparatus for carrying the same into effect in which castiron or like rollers provided with scrapers: are employed for thedrawing rollers of the ,gill-spinning frame to facilitate the desiredwith 'the'addition bfstarclrwater' spinning of the fiber in a moistcondition or if thereto. Y Y

The invention further consists in a method and/or apparatus according toeither of the preceding paragraphs in which the sliver is subjected to aheavy pressure amounting, say, to about ten times the normal pressure ina card or drawing frame delivery roller.

The invention further consists in apparatus for spinning fiber in :amoist condition in filed. iDecemoerI, 1928, Serial No..823,18 0, and inGreat Britain December 6, 192?.

I which means operating the starting device of of a gill-spinning frameis provided with a gravity controlled scraper fitted to the means whichexert pressure on the roller so that the scr je per follows themovements of the roller.

e invention also consists in improvements in or relating to theutilization of coconut fibers as hereinafter described.

- Referring now to the accompanying diagrammatic drawings Figure 1indicates a way of subjecting the sliver to aheavy and adjustablepressure at r the delivery rollers of preparing machinery such as cardsand drawing frames;

Figure 2 shows an arrangement for moistening the sliver at the lastdelivery rollers before passing to a gill-spinning frame or the like;

Figure 3 shows a roller for example of, cast iron and fitted withautomatic scraper means for passing the sliverinto the gill spinner.

Fi ure 4 is a smaller scale diagram showmg t e parts of the apparatus inrelation to one another. Y so In carrying the invention into effect inone convenient form the fiber obtained from the coconuts, for example asdescribed in American Patent No. 1,713,681, is worked over for examplethe carding machinery p, p and drawing frames 7, 1'' shown in Fig. 4" inan air-dried condition or say not exceeding in the neighbourhood of 25per cent. total moisture and at the delivery rollers of the said cardingmachines and drawing frames the sliver is subjected to a heavy pressurewhich will be not less ,than three'times and prefi erably in theneighbourhood of ten times the pressure usually employed in suchappliances. V

Figure 1 is a diagram indicating how this pressure may be applied in anyof the said apparatus by connecting the frame indicated at a of one of apair of delivery rollers b, c

of a carding machine drawing frame or the like (2 to levers e which arepivoted at the end e closely adjacent to the point where the tensionmember d is connectedthereto and are provided at the other end 6 at aconsiderably greater distance from the tension member 0! with a weight!which may be adjustable as to amount an /or position along the lever eand by means of which the pressure between the rollers 12, 0 may beadjusted.

The material after its passage through say a breaking and afinishingcarding machine p and p in the form of a sliver g may be passedthrough a series of, any desired number of drawing frames rr, beingsubjected to abnormal pressure at the delivery rollers of each of themachines in the manner already indicated. At the delivery roller of thelast drawin frame for example 1'' and immediately be ore passing to thegill-spinning frame .9 the sliver is subjected to a moistening process,this being conveniently accomplished as indicated in detail in Figure v2by fitting for example a starch water service 72. to deliver on to theroller 6' and controlling the service by means of a valve k the handle12. of which is connected to the starting mechanism of the drawing framefor example by a rod 7' in such a manner that when the machine isstartedthe valve h is opened and the starch water fed to the sliver 9while when the machine is stopped the liquid ser-.

vice is automatically turned off by the act of stopping.

Figure 3 indicates means for passing the moistened sliver of fiber g tothe gill-spinning frame 8; the drawing roller of this apparatus isconstructed of cast iron or similar material and the roller is providedwith automatic scrapers for clearing the sliver therefrom. I

The scrapers k may be conveniently hinged to the bearing members for therollers by connecting them, say, to the members m which applythenecessary I pressure to the rollers 6 0 The scraper k may consist ofa suitable knife or the like which may be formed of brass or othersuitable material occupying a more or less horizontal position at isclosely adjacent to the region where the sliver leaves the rolls toenter the flier ning spindle n and thisknife member may be suitablyconnected by inclined arms is to a pivotal hinge Z upon the bearing, m,say on a horizontal line from the centre of the roller axis, the scraperbeing suitably loaded, say by a weight 0, so that it is maintained incontact with the roller by gravity.

By operating as above described it is possible to successfully card anddraw the fiber in an air-dried condition without any tendency for it tolick upon the rollers due to the dry condition. At the same time thespin ningin a moist condition or with the appl1cat on of starch waterfacilitates the production of a much stronger yarn such as may be to agill-spinnin and spin-- CQCO- example and that springs, screws or othersuitable devices may be employed for exerting the necessary pressure.

' It is to be understood that the construction and apparatus describedis given by Way of example only and that modification and additions maybe introduced without in any way departing from the spirit of thisinvention.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. A method of spinning coconut fibercomprising subjecting working the fiber in an airdried condition topreparatory carding and drawing operations with abnormally high pressureon the resulting slivers adding liquid to the sliver and subjecting thewet sliver operation. 7

2. Apparatus or spinning coconut fiber comprising preparing machinesincluding drawing frames over all of which the fiber, is worked in anair-dried condition, means for subjecting the resulting slivers toabnormal high pressure in the delivery rollers of each machine, meansfor adding liquid to the sliver at the delivery rollers of the lastdrawing frame and means for subjecting the wet sliver to a gill-spinningoperation.

3. Apparatus for spinning coconut fiber comprising preparing machinesincluding drawing frames over all of which the fiber is worked in.an'air-dried condition, means for subjecting the resulting slivers toabnormal high pressure in thedelivery rollers of each machine, means foradding starch water to the sliver at the delivery rollers of the lastdrawing frame, a gill-spinning frame for receiving the wet sliver,drawing rollers of hard material such as cast iron for said spinningframe and resilient scraping means for said hard rollers.

4. Apparatus for spinning coconut fiber comprising carding machines anddrawing frames over which the fiber is worked in an air-dried condition,means for loading the delivery rollers of each machine to subject theresulting slivers to abnormally high pressure, a liquid service fittedto the delivery rollers of the last drawing frame for moistening thesliver, a gill-spinning frame over which the wet sliver is worked, castiron rollers for said gilll1 spinner and scraping means fitted to saidro ers.- I

5. Apparatus for spinning coconut fiber the resulting slivers toabnormally highhpresto Q 8. Apparatus for spinning sure, a liquidservicmfitted to the very rollers of the last drawing frame formoistening the sliver, a gill-spinning frame over which the wet sliveris worked, cast iron rollers for said gill spinner, means for exerting ahigh pressure on said cast iron rollers and a gravity controlled scra erfitted to the ressure exerting means so t at the scraper ollows themovements of the rollers. 6. Apparatus for spinning coconut fibercomprisin preparing machines including drawing rames over all of whichthe fiber is worked in an air-dried condition, means for subjecting theresulting slivers to abnormal high pressure in the delivery rollers ofeach machine, means for addin liquid to the sliver at the deliveryrollers 0% the last drawing frame, a gill-spinning frame over which thewet sliver is worked, cast iron rollers'for said gill spinner, means forexerting a high pressure on said cast iron'rollers and a resilientlycontrolled scraper fitted to said rollers.

7. Apparatus for spinning coconut fiber comprising preparing machinesincluding drawing frames over all of which the fiber is worked in andair-driedcondition, means for subjecting the resulting slivers toabnormal high pressure up to about ten times that usually employed inthedelivery rollers of" each machine, means for adding liquid to the sliverat the delivery rollers of the last drawin which t e wet sliver isworked, cast iron rollers for said gill spinner, means for exerting ahigh pressure up to about ten times that usually employed on said castiron rollers and a resiliently controlled scraper fitted to saidrollers.

coconut fiber comprising carding machines and drawing frames over whichthe fiber is worked in an air-dried condition and with an abnormallyframe, a gill-spinning frame over subjecting the wet sliver to agill-spinning operation. i

10. A method of spinning coconut fiber comprising subjecting the fiberwhen containing not more than some 25 per cent., of moisturetopreparatory working,.subject1ng the resulting slivers to-not less thanthree and up to ten times the pressure'normally employed, moistening thesliver to a liquid content of not less than 25 per cent. and up to percent, or more and subjecting thewet sliver to a gill-spinning'operation.

11. A method of spinning coconut fiber comprising subjecting the fiberwhen conta ning not more than some 25 per cent. of nunsture topreparatory carding and drawlng operations with pressures of not lessthan three and up to ten times the pressure normally employed on theresulting slivers, adding starch water to the sliver, heavily pressingthe sliver with cleanly scraped hard close grained surfaces and subjectng the wet sliver to a gill-spinning operation.

12.'A method of spinnm coconut fiber comprising subjecting the fi er topreparatory working in an air-dri ed condltion, subjecting the resultingslivers to abnormally high pressure, adding starch water to the sliver,heavil pressing the shver wlth cleanly scraped har close grainedsurfaces and subjecting the wet sliver to a gill-spinning operation.

In testimony whereof I have slgned my name to this specification.

BAREND 'GYSBERTUS HENDRIKUS van der JAGT.

high pressure up to about ten times that i usually employed exerted onthe resulting slivers in the delivery rollers of each machine, a starchwater service to'Wet the sliver fitted to the delivery rollers of thelast drawing frame and regulated by the starting and stopping mechanismthereof, a gill-spinnin frame over which the wet sliver is worke castiron rollers for said gill-spinning frame, means for loading said castiron rollers to subject the sliver to an abnormally high pressure up toabout ten times-that usually employed and a resiliently controlledscraper fitted to the loading means so that the scraper follows themovements of the rollers.

9. A method of spinnin coconut fiber co'mprisin subjecting the ber 1n anairdried con 'tion to preparatory carding and drawing operations withabnormally high pressure of not less than three and up to about tentimes that usually employed on the resulting slivers, adding liquid tothe shver and

